The average daily turnover of stock options contracts was 8 899 in 1999, representing an increase of 33 per cent over that of 1998.是什么意思_The average daily turnover of stock options contracts was 8 899 in 1999, representing an increase of 33 per cent over that of 1998.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句